Question
l=[[1 ,2, 3], [4, 5, 6], [7, 8, 9]]
[[row[i] for row in l] for i in range(3)]
a.
Error
b.
[[1, 4, 7], [2, 5, 8], [3, 6, 9]]
c.
1 4 7
2 5 8
3 6 9
d.
(1 4 7)
(2 5 8)
(3 6 9)
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